Chatham County officials say they have seen a recent uptick in cases of whooping cough among adolescents and younger children.

Two students at Northwood High School were diagnosed with the disease in mid-October. Health Department workers and the Chatham County School system are trying to identify other students who may have been exposed.

Whooping cough, also known as pertussis, is easily spread by coughing or sneezing. It causes a severe cough that can last for weeks or months. It’s especially dangerous for infants and those with weakened immune systems.

Spread of the disease is easily prevented by vaccination. If you need a booster shot, you can contact the Chatham County Health Department or the Orange County Health Department.